On 09/14/2009 06:01 PM, inode0 wrote:
> On Mon, Sep 14, 2009 at 7:48 PM, Daniel B. Thurman <dant at cdkkt.com> wrote:
>>> I noticed that some (older?) shell-scripts have
>> self-extracting executables built in and extracting
>> was done done by using a tail +N $0 where N is the
>> line number where the executable line is located to
>> the end of the file. Unfortunately, Fedora's tail program
>> does not support the +N option.
>>> tail -n +40 should begin the tail at line 40 for example.
>>>> I am looking for an alternative.
>>>> I tried to wrap the executable with a function such as:
>>>> outname=selfextractExe.$$
>>>> function unWrapExe() {
>> cat <<'EOF'
>> <executable>
>> EOF
>> }
>>>> # Do pre-shell stuff
>>>> unWrapExe > $outname
>> ./outname
>>>> # Do post-shell stuff
>>>> The problem as I see it, is somehow cat blows
>> up when certain characters appear in the input
>> stream and the output executable file becomes
>> corrupted cannot be executed. I have tried
>> echo and I cannot think of another program to
>> try.
>>>> So, how does one go about fixing these sort of
>> problems nowadays?
>>> You might take a look at shar for packing executables in shell scripts.
>> John
>>OH! So solving the main tail problem is by adding
the -n argument! That works!
Thanks!
Dan